• ifu window does not show on pylos

• The RC script which runs 4 exposures for each filter seems not to be working properly.

• Arc image is rotated in X,Y. The WCS it is not aligned with image coordinates.

• Program hangs up when you set up an exposure time lower than the integration time. The integration 'beep' keeps ringing.

• ifu window does not show on pylon

• The arc did not seem to manually adjust for the right exposure time.

• The telescope focus has a non-linear response to different focus distances. It seems to have a "dip" at some point and decrease, before increasing again.

• When the seeing reaches about 3.5", the guider starts to fail.

• The centre of the IFU shown by the rectangle+circle seems to be shifted 400 pixels in X axis to the left. No major shift in Y axis.

• When control given to the instrument, the control software provides an error saying that GXN interface does not have control.

> control

And select the option 2 [instrument].

>4 stow

For flat position.

In the instrument menu, select 1. Initialise Telescope. This should give control to the instrument first. Then, select any other command from the list and it will have the control.

- ifu window does not show on pylon Solution: log off from pylon and log in again to restart all windows.

- The arc did not seem to manually adjust for the right exposure time.

- The telescope focus has a non-linear response to different focus distances. It seems to have a "dip" at some point and decrease, before increasing again.

Q&A

Arc image is rotated in X,Y

Solution: power on the telescope.

Program hangs up when you set up an exposure time lower than the integration time.

Solution: Restart. TODO: code that it does not crash.

-- NadiaBlagorodnova - 17 Nov 2015